Earnings Per Share (Tables)

9 Months Ended

Mar. 31, 2016

Earnings Per Share [Abstract]

Reconciliation of Common Shares Used to Compute Basic and Diluted Earnings Per Share

The following tables reconcile the number of common shares used to compute basic and diluted earnings per share attributable to Cardinal Health, Inc.:

	Three Months Ended March 31
(in millions)	2016	2015
Weighted-average common shares–basic	328	330
Effect of dilutive securities:
Employee stock options, restricted share units, and performance share units	3	4
Weighted-average common shares–diluted	331	334

	Nine Months Ended March 31
(in millions)	2016	2015
Weighted-average common shares–basic	328	332
Effect of dilutive securities:
Employee stock options, restricted share units, and performance share units	3	4
Weighted-average common shares–diluted	331	336